A watermelon is on display at an exhibition displaying vegetables and fruits varieties that have been experimented in space, in Yinchuan, Ningxia Hui Autonomous Region, on June 29, 2018. More and more "space vegetables" are now available to ordinary consumers with the expansion in cultivation areas. (Photos: Lang Kai)

Melons are on display at the exhibit. 

Yellow peppers are on display at the exhibit. 

Fruit cucumbers are on display at the exhibit.

Mini-pumpkins are on display at the exhibit. 

Watermelons are on display at the exhibit.